Global Patent Index - EP 1839354 A1

EP 1839354 A1 2007-10-03 - COPPER COLLECTOR FOR SECONDARY BATTERY COMPRISING CU-NITRILE COMPOUND COMPLEX FORMED ON SURFACE THEREOF

Title (en)

COPPER COLLECTOR FOR SECONDARY BATTERY COMPRISING CU-NITRILE COMPOUND COMPLEX FORMED ON SURFACE THEREOF

Title (de)

KUPFERCOLLECTOR FÜR EINE SEKUNDÄRBATTERIE MIT EINEM AUF DER OBERFLÄCHE DAVON AUSGEBILDETEN CU-NITRIL-VERBUNDKOMPLEX

Title (fr)

COLLECTEUR EN CUIVRE POUR BATTERIE SECONDAIRE COMPRENANT UN COMPLEXE DE COMPOSE CU-NITRILE FORME A SA SURFACE

Publication

EP 1839354 A1 (EN)

Application

EP 05821400 A

Priority

  • KR 2005004025 W
  • KR 20040100595 A

Abstract (en)

[origin: WO2006059854A1] Disclosed are copper foil or net comprising a Cu-nitrile compound complex formed on the surface thereof, a method for preparing the same, and a lithium secondary battery that comprises an electrode using the same copper foil or net as a collector. The lithium secondary battery, which uses a copper collector comprising a Cu-nitrile compound complex formed on the surface thereof through the application of a certain voltage level, can prevent the corrosion of Cu occurring at a voltage of 3.6V or higher under overdischarge conditions away from the normal drive condition, and thus can significantly improve the capacity restorability after overdischarge.

IPC 8 full level (invention and additional information)

H01M 4/64 (2006.01)

CPC (invention and additional information)

H01M 4/661 (2013.01); H01M 10/0525 (2013.01)

Designated contracting state (EPC)

DE

EPO simple patent family

WO 2006059854 A1 20060608; CN 100514726 C 20090715; CN 101069308 A 20071107; DE 112005002982 B4 20121004; DE 112005002982 T5 20080110; EP 1839354 A1 20071003; JP 2008522381 A 20080626; JP 2012186173 A 20120927; JP 5630754 B2 20141126; KR 100644074 B1 20061110; KR 20060061892 A 20060608; TW 200638590 A 20061101; TW I318019 B 20091201; US 2006147803 A1 20060706; US 2012214058 A1 20120823; US 8192872 B2 20120605; US 8372543 B2 20130212

INPADOC legal status


2008-01-09 [18W] WITHDRAWN

- Effective date: 20071128

2007-10-03 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20070702

2007-10-03 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE